-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Thats disappointing, thanks for the input though. The paper at: http://wiki.lustre.org/images/7/79/Thumper-BP-6.pdf
Points out how to patch it to enable that functionality, but we want to keep with the CFS stock kernel. 30MB/s might be fine for us, we only plan on bonding the 4 thumber 1Gig-e interfaces. Brock Palen www.umich.edu/~brockp Center for Advanced Computing [EMAIL PROTECTED] (734)936-1985 On Apr 23, 2008, at 1:00 PM, Brian Behlendorf wrote: > > Recently I have also been doing some linux work with the x4500 and > I have been > using the sata_mv driver (v0.81). The driver will properly detect > all the > drives and you may access them safely. However, from what I've > seen the > driver needs some further development work to actually perform > well. I see > only 30 MB/s write rates to a single disk using a simple streaming > dd test. > Much of this bad performance may simply be due to the fact that the > driver > can not enable the disk write-back cache forcing you to use write- > thru mode. > > So currently the bottom line is linux will work on the x4500. But > to get it > working well someone is going to need to invest some development > effort to > improve the linux driver. > > Good luck, > Brian > > >> There was some discussion about the driver/module for the sata >> controlers in the thumper (x4500) in the linux kernel. >> >> My question is if we bought one of these, would the CFS kernel have >> everything needed to use the thumper in a safe way. >> Thank You. > _______________________________________________ > Lustre-discuss mailing list > [email protected] > http://lists.lustre.org/mailman/listinfo/lustre-discuss -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (Darwin) iD8DBQFID2xmMFCQB4Bvz5QRAsDCAJ44d0zU+fUlQkEASgc3M6JBciYgdQCfaUUM r2VnAo6S0Tj3+qGYCoKrcGE= =Xw7Q -----END PGP SIGNATURE----- _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
